On Thu, 7 Apr 2016, Josh Poimboeuf wrote: > > > - try ftrace handler switching idea from v1 cover letter [ ... ] > > We probably should not check the stack in atomic context > > Can you elaborate why not?
I admittedly forgot what the "ftrace handler switching idea" is, and am not sure where exactly to look for it (could you please point it to me so that I can refresh my memory), but generally we can't assume that a memory holding stack of a sleeping task hasn't been reclaimed and wouldn't need to have been paged in again. -- Jiri Kosina SUSE Labs
